This series 350 channel balance also known as a block and tackle balance has a 34" long metal channel and is for a non-tilt window. The channel's width measures 9/16" but is considered 1/2" in the trade. This balance comes fully assembled with a 15-004 shoe and a 19-002 top attached.

Stamp Option

Sash Weight Range

3310

8 to 13 lbs

3320

13 to 18 lbs

3330

18 to 23 lbs

3340

23 to 28 lbs

3350

28 to 32 lbs

3360

32 to 35 lbs

3365

35 to 39 lbs

*This information is based on 2 balances per sash. Balances are designed assuming friction in the jamb weather-strip will carry a portion of the sash weight. Suggested sash weights are approximate.

Good Idea!

Balances are sold individually, however, it is a good idea to replace both window balances at the same time. Pairing a new balance with an old one would cause the new balance to wear out faster.

Helpful Tip!

The stamp option represents the strength of the channel balance. Locate the stamp on your channel balance. If your stamp does not match any of the stamp options available or you are unsure of which stamp option you should choose: ask our experts for help.